7-12-2021
This looks like
2 columns
\[\begin{align} \mu & = E(X) \\ & = \int xf(x)dx \\ \end{align}\]
For this exercise the r was used (R Core Team 2019)
print('echo')
## [1] "cached"
R Core Team. 2019. R: A Language and Environment for Statistical Computing. Vienna, Austria: R Foundation for Statistical Computing. https://www.R-project.org.